Sink



FIG. 1 is a perspective view of a sink showing my new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a front elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a rear elevational view thereof.

FIG. 6 is a left side elevational view thereof.

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a cross sectional view taken on line 8--8 of FIG. 1.

The ornamental design for a sink, substantially as shown and described.